Question

java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer

23:59:14,828 WARN Configurator:126 - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/E:/workspace/ss/WebRoot/WEB-INF/lib/ehcache-1.1.jar!/ehcache-failsafe.xml
23:59:15,312 INFO IntegerType:87 - could not bind value 'accp' to parameter: 1; java.lang.String cannot be cast to java.lang.Integer
Exception in thread "main" java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer
at org.hibernate.type.IntegerType.set(IntegerType.java:41)
at org.hibernate.type.NullableType.nullSafeSet(NullableType.java:83)
at org.hibernate.type.NullableType.nullSafeSet(NullableType.java:65)
at org.hibernate.loader.Loader.bindPositionalParameters(Loader.java:1514)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1576)
at org.hibernate.loader.Loader.doQuery(Loader.java:661)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.loadEntity(Loader.java:1785)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:47)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:41)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:2730)
at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:365)
at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:346)
at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:123)
at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:161)
at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:87)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:862)
at org.hibernate.impl.SessionImpl.load(SessionImpl.java:781)
at org.hibernate.impl.SessionImpl.load(SessionImpl.java:774)
at org.springframework.orm.hibernate3.HibernateTemplate$3.doInHibernate(HibernateTemplate.java:508)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:372)
at org.springframework.orm.hibernate3.HibernateTemplate.load(HibernateTemplate.java:502)
at org.springframework.orm.hibernate3.HibernateTemplate.load(HibernateTemplate.java:496)
at com.accp.dao.UserDaoImpl.getUser(UserDaoImpl.java:28)
at com.accp.dao.UserDaoImpl.main(UserDaoImpl.java:44)
ssh集成我只做了个登录，查询时就出这个异常

Answer 1

数据转换异常 String类型的数字("123")应该进行强制转换成数字类型(123) ，String类型的字符串（“abc”）强制装换成整形，报这个错误。

Answer 2

类型强制转换异常 不能将String类型转化成Integer类型 这是经常见得错误

Answer 3

类型强制转换异常 不能将String类型转化成Integer类型 这是经常见得错误

Answer 4

不能将String强制转换成int，可用以下命令
Integer.parseInt(String a)；